Home / 66,681.27-92,031.54-38,403.36

Finding the Fourth Proportional to 66,681.27, 92,031.54 and 38,403.36

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Solution

The fourth proportional to 66,681.27, 92,031.54 and 38,403.36 is: 53,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.27 : 92,031.54 = 38,403.36 : x
  2. Step 2: Convert to fraction form
    66,681.27/92,031.54 = 38,403.36/x
  3. Step 3: Cross multiply
    66,681.27x = 92,031.54 × 38,403.36
  4. Step 4: Simplify right side
    66,681.27x = 3,534,320,361.97
  5. Step 5: Solve for x
    x = 3,534,320,361.97/66,681.27
  6. Step 6: Final answer
    x = 53,003.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.